Another researcher identified the character of household wastewater using average and. maximum levels. Average BOD. 5 levels were identified as 200 mg/L with a maximum of 400 mg/L, average TSS levels of 200 mg/L with a maximum of 400 mg/L, and average Grease levels of 50 mg/L. with a maximum of 150 mg/L (Laak, 1986).
home glossary Circular E. Circular E, Employer's Tax Guide, also known and Publication 15, is published annually by the IRS and includes definitions of frequently used payroll terms and concepts, rules and regulations for the filing of federal employment taxes, and percentage method and wage bracket federal income tax withholding tables.
What is the definition of a circular letter? A: A circular letter is a document or letter that is sent to a closed group of people with the intention of being widely circulated. In business, circular letters are used to inform their recipients of new policies or other important matters. They might be sent to all of a company's employees or clients to notify them of new company plans or a change of address. Continue Reading.